| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.665 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 3.810 INCHES NOMINAL |
| HEAD HEIGHT | 0.440 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | Q-S-631 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SHOULDER DIAMETER | 0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 3.260 INCHES MINIMUM AND 3.265 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHANK UNTHREADED HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE |
| SPECIAL FEATURES | HOLE DRILLED IN SHOULDER PERPENDICULAR TO BOLT AXIS,0.250 IN. MIN 0.255 IN. MAX DIA. 1.916 IN. MIN 1.922 IN. MAX DISTANCE FROM BEARING SURFACE OF HEAD TO CENTER OF HOLE |
| WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |